Equity as a mediator of the effect of reward level on behavior in the Prisoner's Dilemma game.

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Abstract
Notes that studies investigating the effects of reward level on behavior in the Prisoner's Dilemma have yielded mixed results, but most have found either that no systematic relationship existed between choices and reward level or that as reward level increased cooperative behavior decreased. It was hypothesized that these results were due to Ss in the high-reward conditions reacting negatively to their perception that they were being inequitably overpaid. Results with 80 male undergraduates support this hypothesis: Ss who worked on a pretask for 11/2 hr. were more cooperative when they played 10 trials of a high-reward matrix Prisoner's Dilemma game than when they played a low-reward matrix game; the opposite was found for Ss who did not work before playing the game. (16 ref.) (PsycINFO Database Record (c) 2016 APA, all rights reserved)

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